Dumping-platform



(Ho Model.) 2 Sheets$heet 1.

JIT. SAVAGE a; J. LOVE.

DUMPING PLATFORM; I No. 268,943 Patented Dec. :12, 188Z..

2 Um. V O L & nu A V A S T, m

DUMPING PLATFORM.

Patented Dec 12.1882.

Il a/32g.

UNITED STATES PATENT JOHN T. SAVAGE AND JOHN LOVE, OF ROCKFORD,ILLINOIS.

DUMPlNG-PLATFORM.

SPECIFICATION forming part of Letters Patent No. 268,943, dated December12, 1882.

Application filed October 16, 1882. (No model.) I

To all whom it may concern Be it known that we, JOHN T. SAVAGE and JQHNLOVE. citizens of the United States, residing in the city of Rockford,in county of Winnebago and State of Illinois, have invent ed new anduseful Improvementsin Dumping- Platforms, of which the following is aspecification.

This invention relates to dumping-platforms employed mainly inconnection with elevators for the purpose of unloading grain fromvehicles employed in its transportation; and it consists mainly inmechanism employed in connection with a pivoted platform for changing itfrom a horizontal to an inclined position, or vice versa, to produce anefficient dumpingplatt'orm. The devices employed, which are representedin the accompanying drawings, their application and their operation,will be hereinafter more fully described.

In the accompanying drawings, Figure l is an isometrical representationof a dumpingplatform embodying our invention. Fig. 2 is a side elevationwith portions broken away to show the construction of the parts in thepit. Fig. 3 is a transverse vertical section on dotted line 00.

In the figures, A represents the pit-walls of an ordinaryweighing-scale, such as are to be found employed in connectionvwithelevators, in the hay-market, or other like situations, employed mainlyfor weighing loaded vehicles and stock. On the pit-walls is mounted aborder-frame consisting of side and end timber beams, B, rectangular insection, having their corner ends suitably joined at right anglesbyframing or otherwise, producing a rectangular capping-frame to thepit-walls and border-frame to a scale-platform.

At (3 are represented lengthwise wood side beams of a scale-platform.These beams are rectangular in section, and are joined toward the endportions by transverse beams, D, having the upper end portionsoverlapping the side beams. I

At E are represented lengthwise joist or floor beams, having their endportions suitably joined in the transverse beams D at a suitabledistance inside of the side beams, O, producing a scale-platform frame.

At a are represented floor-plank, which are fixed to the upper surfaceof the scaleplatform frame, leaving lengthwise side openings, 1),between the lengthwise side beams, O, and

also an end opening, 0.

At F are represented track-beams of suitable dimensions to freely enterthe lengthwise trally supported in the side openings on suitablepivot-bolts, 01, passed transversely through the side beams andfloor-joist of the platform and through the track-beams.

gear of bracket form, fixed to the under side from which they depend ina curve concentric with the pivotal center of the beam.

At It are represented bracket-bearings, one of which is fixed to theunder face side of each side beam of the scale-platform, from which theydepend. The lower end portions, 5, of these brackets are fitted injournal-hearing form, adapted to receive the journal portion ot'atransverse shaft, II, which is fitted to revolve therein.

At k are represented spur-toothed gear-pinions mounted-upon the shaft H,to which they are fixed in such position that their gear-teeth shallengage the gear-teeth of the toothed segment in Working contact.

At 1 is represented a sprocket-wheel fixed on the outward projecting endof the transverse shaft H, on whichthe spur-toothed pinions are mounted.At 1 is represented a sprocket-wheel fixed to the projecting end ofashaft, m, mounted to revolve in a bearing on the upper end of apedestal, K. This pedestal Kis of suitable dimensions, and is fixed onthe upper face of the door of the platform in such on its upper end, issubstantially in the same vertical plane with the sprocket-wheel I onthe transverse shaft H.

At a is represented a chain-belt composed of suitable links to engagethe teeth of the sprocket-wheels, and is employed to connect movement ofone of the wheels to the other.

At N is represented a hand-wheel fixed on the outward-projecting end ofthe shaft m,

mounted on the pedestal. Thishand-wheel is the lengthwise floor beams orjoist, E, and

side openings, b. These track-beams are cen- At e is represented aspur-toothed segrnen tof the end portions of the pivoted track-beams,

position that the sprocket-wheel I, mounted the sprocket-wheels I and lto transmit the pawl end will engage the teeth of a ratchet-.

wheel, 1', fixed to the shaft m on the pedestal.

At 8 is represented a springhavinga su'itable connection'yvith thelever-pawl p and with the pedestal in such a manner that its springaction will operate to hold'the pawl in contact with the ratchet-wheelr. The free arm of the lever-pawl serves as a means by which an attendant may disengage the pawl from the ratchet-wheel. The rear ends ofthe trackbeams F are provided with a metallic portion, t, securely fixedin place thereon and projecting rearward over their ends, adapted toengage the gear-toothed pinions and limit the inclination of the beams.The rear transverse end beams, D, are shod with iron at points oppositethe track-beams to receive the wheels of the vehicle.

At P is represented a hinged door designed to close the end opening, 0,and is capable of being raised on its hinged connection to itsrearward-inclined position represented in the dotted lines, andsupported in such inclined position by means of a brace-link, u, havinga link-joint connection centrally with its front edge portion.

At 1% is represented the sides, and at T the bottom, of an inclinedspout-like portion, in

this instance connected with the under side of form the several partsthereof are brought into the position represented in Fig. 1, when it isprepared to receive a loaded vehicle, which is then driven onto theplatform, and is support- I ed on the track-beams thereof. The hingeddoor is then raised and supported in the position shown in the dottedlines. The attendant then disengages the pawl from the ratchet, and bymeans of the hand-wheel, or of the handle fixed therein, will rotate thewheel in the direction indicated by the arrow, which movement will beimparted to the gear-toothed pinions by means of the chain-belt andsprocket-wheel connection with the shaft on which they are mounted, andthe rotations of the pinions by means of their gear-toothed connectionwith thetoothed segments will cause the trackbeams to swing upon theirpivotal supports to the inclined position shown in the dotted lines inFig. 2, which movement will place the vehicle supported on the beams inthe same inclined position. The en tl-gate of the vehicle is thenremoved or opened, when its contents will be discharged through the endopening into the inclined spout, to be conducted into a receptacleprepared for its reception. The door in the platform is then closed, andthe hand-wheel revolved in the direction opposite to that indicated bythe arrow, which movement will return the parts to their position shownin Fig. 1, in which position they will be held bymeans of the pawlengaging the ratchet-wheel. The unloaded vehicle is then driven from theplatform, and the apparatus is in position to receive another loadedvehicle, ready for another operation.

By this construction and arrangement of the parts we produce a simpleand effective apparatus at a small cost, and in which we obviate thesudden jarring action or shock common in most dumping-platforms. haveemployed a sprocket-wheel and chainbelt movement by which to operate ourimproved dumping;pl.atform; but instead thereof a shaft and thewell-known miter or beveled toothed gear-wheels may be employed; or ashaft and screw-gear connection with the toothed segments may beemployed, and still be within the scope of our invention.

We claim as our invention t 1. The combination, with the track-beams ordumping portion of a platform, of geartoothed segments having agear-train connection with an operating mechanism, for the purpose setforth.

2. The combination, with the gear-toothed segments fixed to the pivotedtrack-beams or dumping portion of the platforms, of spurtoothedgear-pinions to engage the gear-teeth of the segments, substantially asand for the purpose set forth.

3. The combination, with the spur-toothed gear-pinions having agear-toothed connection with the gear-toothed segments, of asprocketwheel and chain-belt connection therewith, substantially as andfor the purposeset forth.

4. The combination, with the sprocket-wheel and chain-belt connectingwith the spurtoothed gear-pinions, of a hand-wheel or winch to impartmotion to the parts, substantially as and for the purpose set forth.

5. The combination, with the sprocket-wheel and chain-belt connectingwith the spurtoothed gear-pinions, of a ratchet-wheel and pawlmechanism, substantially as and for the purpose set forth.

6. The combination, with the pivoted trackbeams or dumping portion ofthe platform, of detents operating to limit the descent of the dump,substantially as set forth.

' JOHN T. SAVAGE.

. JOHN LOVE.

Witnesses JACOB BEHEL, A. 0.BEHEL.

In this instance we IIO IIS

